Geometry: Points: Fix point insertions pamhyr_id creation and default value.

src/Model/Geometry/PointXYZ.py

@@ -28,7 +28,7 @@ from Model.Geometry.Point import Point
 logger = logging.getLogger()
 
 
-class PointXYZ(Point, SQLSubModel):
+class PointXYZ(Point):
     _sub_classes = []
 
     def __init__(self, id: int = -1,
@@ -302,6 +302,9 @@ class PointXYZ(Point, SQLSubModel):
         self._z = float(value)
         self.modified()
 
+    def get_coordinate(self):
+        return (self._x, self._y, self._z)
+
     def is_nan(self):
         """
         Returns: